Experimental investigation on fracture initiation and non-planar propagation of hydraulic fractures in coal seams
TAN Peng, JIN Yan, HOU Bing, HAN Ke, ZHOU Yingcao, MENG Shangzhi
Petroleum Exploration and Development . 2017, (3): 445 -451 .  DOI: 10.11698/PED.2017.03.15